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Knoxville

$530+ Cheap flights from Heathrow (LHR) to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Knoxville McGhee Tyson are usually found in September or March, booked 60 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to Knoxville

Cheapest flights from Heathrow to Knoxville
Explore the most affordable flight options available from Heathrow to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Finnair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:55 amLHR - TYS
1 stop11h 49mMultiple Airlines
Mon 6/226:56 pmTYS - LHR
1 stop11h 19mMultiple Airlines
Deal found 12/10$1,022
This Expedia deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:45 amLHR - TYS
1 stop12h 29mAir France
Mon 6/224:00 pmTYS - LHR
2 stops16h 45mAir France
Deal found 12/10$1,059
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:40 amLHR - TYS
1 stop19h 59mLufthansa
Mon 1/57:23 pmTYS - LHR
1 stop30h 17mLufthansa
Deal found 12/10$1,129
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:35 amLHR - TYS
2 stops22h 24mUnited Airlines
Mon 1/55:35 pmTYS - LHR
1 stop33h 20mUnited Airlines
Deal found 12/10$1,146
This Mytrip deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:00 amLHR - TYS
2 stops17h 37mMultiple Airlines
Mon 1/511:22 amTYS - LHR
3 stops38h 48mMultiple Airlines
Deal found 12/10$1,404
This The Travel House deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:10 pmLHR - TYS
2 stops34h 48mAer Lingus
Tue 12/307:48 amTYS - LHR
2 stops28h 02mAer Lingus
Deal found 12/11$1,491
This Trip.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:30 amLHR - TYS
2 stops17h 59mMultiple Airlines
Tue 12/302:00 pmTYS - LHR
1 stop11h 40mMultiple Airlines
Deal found 12/11$1,639
This Finnair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/212:10 pmLHR - TYS
1 stop12h 11mMultiple Airlines
Mon 12/292:46 pmTYS - LHR
1 stop11h 34mMultiple Airlines
Deal found 12/10$1,670
This Orbitz deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:25 pmLHR - TYS
2 stops32h 56mIberia
Mon 12/293:01 pmTYS - LHR
2 stops15h 54mIberia
Deal found 12/10$1,700
This ChecknFly deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:20 pmLHR - TYS
1 stop27h 23mLufthansa
Tue 12/307:23 pmTYS - LHR
1 stop10h 27mLufthansa
Deal found 12/11$1,733

Find flight deals from Heathrow to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$773
(United Airlines)

One-way from

$530
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$884
Provider with most accurate pricing for London Heathrow-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Knoxville McGhee Tyson flights.
Search Deals
From London Heathrow to Knoxville McGhee Tyson
Search Deals
One-way flight from London Heathrow to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

Fly from

Heathrow

Fly to

Knoxville

Route

Depart

Return

Price

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 1/26

9:00 am-8:52 pm

2 stops16h 52m

Knoxville McGhee Tyson

Mon 2/2

5:29 pm-11:15 am

1 stop12h 46m

$773

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 1/25

11:30 am-7:27 pm

2 stops36h 57m

Knoxville McGhee Tyson

Sun 2/1

5:29 pm-5:55 am

1 stop31h 26m

$792

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 1/25

12:25 pm-12:05 pm

2 stops28h 40m

Knoxville McGhee Tyson

Sun 2/1

1:39 pm-9:35 pm

3 stops26h 56m

$799

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 1/26

2:45 pm-10:54 pm

1 stop13h 09m

Knoxville McGhee Tyson

Mon 2/2

7:44 am-6:35 am

1 stop17h 51m

$811

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 1/15

9:00 am-8:52 pm

2 stops16h 52m

Knoxville McGhee Tyson

Thu 1/22

2:25 pm-10:25 am

2 stops15h 00m

$813

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 1/22

6:35 am-7:27 pm

2 stops17h 52m

Knoxville McGhee Tyson

Mon 1/26

11:07 am-11:15 am

1 stop19h 08m

$818

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 1/19

2:50 pm-3:03 pm

3 stops53h 13m

$530

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 1/17

2:50 pm-7:23 pm

3 stops33h 33m

$538

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 1/18

2:50 pm-4:50 pm

2 stops31h 00m

$581

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 5/8

2:25 pm-11:06 pm

1 stop13h 41m

$586

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 11 results
1
2

Compare providers for flights from Heathrow to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Knoxville in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Knoxville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-Knoxville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Knoxville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Knoxville

How far ahead should I book a flight from London Heathrow Airport to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Knoxville. Price data was last updated on December 5, 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knoxville, you should look to book at least 60 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $366). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of $751). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated December 12, 2025.
See what other customers who have flown with British Airways from London Heathrow Airport to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,571 reviews

Food

6.4

Boarding

6.9

Entertainment

6.4

Overall

6.7

Comfort

6.7

Crew

7.6

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,571 reviews
British Airways
6.7
Okay
7,571 reviews

Food

6.4

Boarding

6.9

Entertainment

6.4

Overall

6.7

Comfort

6.7

Crew

7.6

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knoxville from London Heathrow?

    For a flight from London Heathrow to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 inbound flights from London Heathrow per day. 1 airline has flights to Knoxville McGhee Tyson from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Knoxville?

    Airlines like United Airlines, Lufthansa, and British Airways fly from London Heathrow Airport to Knoxville in about 13h 09m. The time it takes to get you to your destination can typically vary by up to 23h 48m. The distance between London Heathrow Airport and Knoxville is about 4076 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from London Heathrow Airport to Knoxville round-trip?

    Currently priced at $720, British Airways will fly you from London Heathrow Airport to Knoxville and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is priced at 19% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Heathrow to Knoxville that include hotel bookings?

    Yes. In addition to deals on Heathrow to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Knoxville.

  • Can I find deals for business class flights from Heathrow to Knoxville?

    Yes. Cheapflights offers flight deals from Heathrow to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

    Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $366). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of $751). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

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Top airline flying from Heathrow to Knoxville

Discover the top airline that operate flights from Heathrow to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$720Average$1,308FlexibilityNo cancel feeOn-time70%

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